priem



No. 6l6,423.

Patented Dec. 20, I898. P. PRIEM.

PAPER MAKING MACHINE.

(Application filed July 23, 1898.)

2 Sheds-Sheet I.

(No Model.)

(NVENTOI? pea away/2 Patented Dec. 20, I898.

P. PRIEM. PAPER MAKING MACHINE.

(Application filed July 23, 1898.)

2 Shuts-Sheet 2.

(No Model.)

WITNESSES the arrangement and adjustment of the end less wire.

UNITED STATES ATENT' ()FFICE.

PAUL PRIEM, OF I-IEIDENHElM-ON-THE-BRENZ, GERMANY, ASSIGNOR TO THE FIRM OF J. M. VOITH, OF SAME PLACE.

G MACHINE.

SPECIFICATION forming part of Letters Patent No. 616,423, dated December :20, 1898. Application filed'il'uly 23, 1898- Serial No. 686F726. (No model.)

To all whom it may concern.

Be it known that 1, PAUL PRIEM, a citizen of the Empire of Germany, residing at Heidenheim-on-the-Brenz, in the Kingdom of Wiirtemberg and Empire of Goran-icy hav invented certain new and useful Improvements in Paper-Making Machines, of which the following is a specification.

In paper making machines heretofore known the inclination of the Wire is adjusted in such a manner that the entire system of wire -carrying rolls and their rails is raised or lowered near the breast-roll at the ingoing end of the wire. In this disposition a change in the inclination of the wire necessitates also a change in the height of the supply of pulp, while the connecting-rod of the shaking mechanism by which the lateral motion is imparted to the wire-carrying rolls has to be simultaneously adjusted. This adjustment of the wire can, however, not be employed when a stationary supply-box for the pulp is used. Consequently the adjustment of the Wire near the breast-roll is in this case precluded.

The object of my invention is to construct a paper-making machine in which in place of the adjustment of the wire at the ingoing end the inclination of the samei roducer at the suction-box portion, WhlC'l nas the advantage that the curve by which the wire laps around the upper couch-roll is simultaneously changed, and thereby a favorable influence exerted on such paper which is madewith greater inclination of the wire.

The invention consists of a paper-making machine in which the suction-box portion is made vertically adjustable by suitable mechanismand in which the wire-carrying rolls and their rails are simultaneously adjusted relatively to the breast-roll.

In the accompanying drawings, Figure 1 represents a side elevation of a paper-makingmachine with my improved vertically-adjustable suction-box portion. Fig. 2 is also aside elevation of a modified form of the machine. Fig. 3 is aside elevation of the adjustable suction-box portion drawn on a larger scale, and Fig. 4 is a diagram showing Similar letters of reference indicate corresponding parts.

In the drawings, a represents the breastroll, and b the stationary supply-box through which the product is delivered onto the endless wire, which is carried in the usual mannor by a series of tube-rolls r. The rails are provided with bearings for the rolls 1* and are connected by a pivot-link at the ingoing end of the wire with a pivot c on the breastroll support and at the opposite end by a sec ond pivot-link with a lug p on the frame 61 of the suction-box portion. The suction box portion is made verticallyadjustable by means of the frame d, on which the suction-boxes e, the intermediate wire-carrying rolls W, and the wire guide-roll g are mounted. The downwardly extending portions or legs of the frame 01 are provided with slots and connected by screw-bolts Z with stationary standards on and with the supporting-frame of the couchrolls. is the bed-plate of the entire machine. The upright standards on are provided with racks i, which are engaged by pinions'i, that are keyed to transverse shafts '3, which turn in bearings of the frame (1. The shafts '5 are rotated by worm-wheels i keyed to the same, said worm-wheels being engaged by worms t at the ends of a longitudinal shaft '70, which is turned by a hand-wheel h on the same, so that by the intermediate transmit ting mechanism described the entire suctionbox portion can be raised or lowered, as re quired. The vertical adjustment of the suction-box portion can also be accomplished by other means-such as screw-bolts, eccentric cams, toggle-levers, wedge-keys, &c.-it being not necessary that the entire frame be simultaneously adjusted, as one end after the other may be independently adjusted. The entire system of wire-carrying rolls participates in this vertical adjustment for the reason that the rails r are pivotally connected with the frame d at 19 and with the laterally oscillating portion a: of the breast-roll support at c, as shown in Fig. 1.

For paper-making machines of very large size, in which a very long screen portion is used, it is advisable not to connect the entire system of wire-carrying rolls with the frame that they participate in the vertical adj ustment of the frame. It is obvious, however,

couch angle.

that they can be adjusted independently of the same.

Any change in the inclination of the wire produces also the changing of the so-called curve or lap formed by the wire around the upper couch-roll t. Any increase in the inclination of the wire increases also the arc of lap or couch-angle, which forms a special advantage of this construction, inasmuch as papers which are made with a large angle of inclination of the wire require also a large The diagram Fig. 4 shows clearly how by the vertical adjustment of the suction-box portion the inclination of the wire from the breast-roll tc he suction-box portion and from the latter to the upper couchroll is changed, while that portion of the wire above the suction-box always remains in a horizontal position.

Having thus described my invention, what I claim is 1. In papenmaking machines, the combination, with.the endless wire, carrying-rolls for the same and the rails for supporting said rolls, of a suction-box portion, and means for vertically adjusting the suction-box portion substantially as set forth.

2. In'paper-making machines, the combination, with the endless wire, carrying-rolls for the same, and rails for supporting said rolls, of a suction-box portion, a frame for supporting said suction-box portion, stationary standards, and means for vertically adjustin g the suction-box frame on said standards, substantially as set forth.,

3. In paper-making machines, the combination, with the endless wire, carrying-rolls for the same, and the rails for supporting said rolls, of a suction-box portion, means for vertically adjusting said suction-box portion, and means for simultaneously adjusting the roll-supporting rails substantially to a suitable angle of inclination, substantially as set forth.

4:. In paper-making machines, the combination, with the endless wire, carrying-rolls for the same, and rails for supporting said rolls, of-a suction-box portion, means for vertically adjusting said suction-box portion, said rails being pivotally connected with the suction-box portion and with a stationary point near the breast-roll, so that the portion of the wire above the carrying-rails is set intc inclined position simultaneously with the ad justment of the suction-box portion, substantially as set forth.

5. In paper-making machines, the combination,with the endless wire, rolls for carrying the same and rails for supporting said rolls of non-adjustable shake-rails, means for sup porting the roll-carrying rails from the same a suction-box portion, means for verticall adjusting the suction-box portion, and mean: for simultaneously setting the roll-carrying rails into inclined position, substantially a: set forth.

In testimony that I claim the foregoing a: my invention I have signed my name in pres ence of two subscribing witnesses.

PAUL PRIEM.

\Vitnesses:

WM. HAHN, EDWARD H. OGRUM. 

